CoStar Group supplies property data, analytics and online marketplace tools to the real estate sector and related business communities. Its brands include CoStar, covering commercial property information and analytics; LoopNet, a marketplace for commercial property listings; Matterport, which offers 3D capture technology, equipment and associated services; and Visual Lease, lease-management software. In residential property, the group owns Domain and OnTheMarket, portals for agents and property advertising.
Commercial customers include property professionals, brokers and corporate occupiers, who pay through subscriptions to CoStar, fees for paid listings on LoopNet, purchases of Matterport capture equipment and services, and licences for Visual Lease. Residential customers are estate agents, who pay for packages to advertise properties and listings on Domain and OnTheMarket; the group separately earns income from commercial property auctions.
The business is run through two segments, Commercial Real Estate and Residential Real Estate, which do not transact with each other. It operates mainly across North America, Asia-Pacific, Europe and Latin America. The company states it has spent more than 35 years building its database of commercial real estate information, expanding its markets and services partly through acquisitions of related businesses.
Based on CoStar Group's 10-K filed February 26, 2026.
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~$14
Valuation models combined (2)
Base case. Range ~$7.6–$20. Weighted average of 2 models (forward price-to-earnings vs peers, residual income).
No Buy/Hold/Sell rating is issued: valued with our growth model, which doesn't carry a Buy/Hold/Sell rating yet.
CoStar Group valuation: adjust assumptions and compare models →
What company insiders, investment funds and members of Congress have been doing with the stock, from their own filings.
Revenue for the twelve months to September 2026 was $3.67bn, up 20.2% on a year earlier, slower than the 22.0% growth a quarter earlier. Our model value is little changed at $12.31 a share, against a share price of $28.79.
Source: 10-Q filed October 28, 2026 on SEC EDGAR · Financials · Valuation
CoStar Group posted revenue of $3.67bn for the twelve months to June 2026, up 20.2% year-on-year. That marks a deceleration from the 22.0% growth seen a quarter earlier. Our model value has moved higher as a result, rising from $10.99 to $12.42 a share, though this remains well below the current share price of $32.01.
Revenue for the twelve months to June 2026 was $3.56bn, up 22.0% on a year earlier, faster than 21.3% a quarter earlier. Our residual income value is $7.88 a share, against a share price of $32.82.
Written from the company's filings and our models when each quarter's report arrives. Figures in older notes are as published at the time. Not investment advice.
CoStar Group's trailing-twelve-month revenue grew 20.2% year on year, with a free-cash-flow margin of 11.5%. Where it stands out: net margin of 4.9% ranks 2 of 21 real estate services companies we cover. Where it lags: stock pay as % of revenue of 4.2% ranks 17 of 21 real estate services companies we cover.
Current signal Operating margin expanding: TTM operating margin reached 5.8%, up 8.4pp year over year.
Assembled from SEC-filed figures — the full workings are on this page and in our methodology. Observations, not recommendations.
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Company announcements, filed results and changes that matter to shareholders.
We value CoStar Group as an operating company, with every model that fits that kind of business. Cost of equity 8.8%: the 10-year Treasury yield (4.9%) plus a beta of 0.85 times a 4.5% equity risk premium.
| Model | Value per share | In the combined value? |
|---|---|---|
| Growth cash-flow model Revenue for this year and next from analysts' consensus, then growth fading to 2.5%; the operating margin moving to profitable peers'; investment needed per dollar of growth from peers; reduced by a failure probability. For young or fast-growing companies. The starting margin is normalized to between -100% and 60%; net margin is a proxy when operating income is not tagged. Uses analysts' consensus estimates (third-party data), not our forecasts. | ~$3.2 ~$2.0–$3.8 | Left out: out of range vs price (0.10x) |
| Forward price-to-earnings vs peers Next year's consensus earnings per share times peers' typical (harmonic-mean) forward price-to-earnings. Uses analysts' consensus estimates (third-party data), not our forecasts. | ~$20 ~$19–$25 | Included |
| Residual income Book value plus the present value of returns above the cost of equity, fading over ten years. | ~$7.6 ~$4.6–$13 | Included |
| Justified price-to-book Book value times (return on equity - growth) / (cost of equity - growth): steady-state returns. | ~$0.7 ~$0.6–$0.9 | Left out: out of range vs price (0.02x) |
| Forward price-to-sales vs peers Next year's consensus sales per share times peers' typical forward price-to-sales; only when earnings are negative. Uses analysts' consensus estimates (third-party data), not our forecasts. | — | Does not apply: earnings are positive: price-to-earnings is the better measure |
| Revenue-to-maturity model Revenue grown to maturity with the cash margin moving to the industry's; for companies not yet profitable. | — | Does not apply: revenue and margins don't support a positive value |
| Combined value Weighted average of the models that apply: the primary model (growth cash-flow model) counts double. Models more than 5x or less than 0.2x the share price, or more than 3x away from the other models' median, are left out. | ~$14 ~$7.6–$20 | 2 models |
Different models fail in different ways, so where several apply we average them rather than trust one. Peer-based models compare CoStar Group with Real Estate Services in our coverage, using third-party market data. Model values are estimates under stated assumptions, updated as new filings arrive; not price targets or investment advice. How each model works.
Moderate moat
How hard CoStar Group's competitive advantage looks for rivals to wear away, judged from 10 years of its own filings: returns on capital, pricing power, profit durability, cash conversion and discipline.
Cash operating profit has been a median 8.4% of total assets over 10 years.
Gross margin has been a median 79.3%, moving by 1.5 percentage points (standard deviation) across 10 years.
Operating margin has been a median 18.4%; its worst year was -2.6%.
Free cash flow was positive in 9 of 10 years, at a median 19.5% of revenue.
The diluted share count rose 12.7% over five years; stock-based pay has been a median 3.6% of revenue.
AI disruption exposure: Medium. In this industry, AI could change how the product is made or sold, without replacing the core asset. The score above includes a 5-point deduction for that exposure (64 before it).
| Fiscal year | EPS | Growth | Revenue | Growth |
|---|---|---|---|---|
| Current | $1.36 | +57% | $3.8bn | +16% |
| Next | $1.78 | +31% | $4.2bn | +12% |
Next year's EPS estimate has moved +3.2% in 90 days, across 6 analysts.
The consensus EPS forecast for the current fiscal year is +0.3% on 90 days ago. In the last 30 days, 0 analysts raised CoStar Group's forecast and 1 cut it.
Average of analysts' published estimates (third-party data).
| Period | Current fiscal year | Next fiscal year |
|---|---|---|
| 90 days ago | $1.36 | $1.72 |
| 60 days ago | $1.36 | $1.78 |
| 30 days ago | $1.36 | $1.77 |
| 7 days ago | $1.36 | $1.77 |
| Now | $1.36 | $1.78 |
| Quarter to | Estimate | Actual | Surprise |
|---|---|---|---|
| Sept 2026 | $0.34 | $0.38 | +12.0% |
| Jun 2026 | $0.29 | $0.32 | +11.9% |
| Mar 2026 | $0.18 | $0.23 | +24.8% |
| Dec 2025 | $0.27 | $0.31 | +13.8% |
Adjusted EPS as companies report it, against the average analyst estimate.
Last 12 months −53.8%
| Part | Then | Now | Effect |
|---|---|---|---|
| Revenue (last 12 months) | $2.9bn | $3.6bn | +22.0% |
| Net margin | 3.6% | 2.1% | −41.7% |
| P/E multiple | n/m | 179.1x | −34.4% |
| Share count | 413m | 417m | −0.9% |
Biggest factor: net margin.
Last 3 years −58.9%
| Part | Then | Now | Effect |
|---|---|---|---|
| Revenue (last 12 months) | $2.3bn | $3.6bn | +53.2% |
| Net margin | 16.6% | 2.1% | −87.4% |
| P/E multiple | 81.3x | 179.1x | +120.3% |
| Share count | 404m | 417m | −3.1% |
Biggest factor: net margin.
| Calendar year | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 to date |
|---|---|---|---|---|---|---|
| Return | ||||||
| CSGP | −15% | −2% | +13% | −18% | −6% | −53% |
| Industry peers (median) | +47% | −53% | +31% | +11% | −8% | −31% |
| S&P 500 | +29% | −18% | +26% | +25% | +18% | +11% |
| Months that ended higher | ||||||
| CSGP | 33% | 33% | 50% | 33% | 33% | 36% |
| S&P 500 | 75% | 42% | 67% | 75% | 75% | 46% |
| Largest fall from a high during the year | ||||||
| CSGP | −25% | −33% | −23% | −29% | −34% | −60% |
| S&P 500 | −5% | −25% | −10% | −8% | −19% | −9% |
Worst fall since November 2, 2015: 73% from October 26, 2021 to September 29, 2026. Getting back needed a 270% gain, and the shares have not yet recovered.
| Results released | Next day | S&P 500 next day | 5 days | 21 days |
|---|---|---|---|---|
| October 27, 2026 | −18.3% | +0.9% | — | — |
| July 28, 2026 | +2.3% | −1.3% | +2.2% | +10.2% |
| April 28, 2026 | −5.8% | −0.5% | −3.7% | −10.9% |
| February 24, 2026 | −6.5% | +1.6% | −2.3% | −13.5% |
| October 28, 2025 | −9.7% | +0.3% | −10.7% | −13.2% |
| July 22, 2025 | +7.0% | +0.9% | +12.4% | +3.8% |
| April 29, 2025 | −9.3% | +0.7% | −8.7% | −9.4% |
| February 18, 2025 | +7.0% | +0.5% | +4.8% | +7.2% |
| October 22, 2024 | −5.9% | −1.0% | −5.3% | −1.4% |
| July 23, 2024 | +1.1% | −2.4% | +3.9% | +0.1% |
| April 23, 2024 | +7.8% | +1.1% | +7.3% | +2.2% |
| February 20, 2024 | +3.2% | −0.5% | +4.3% | +18.3% |
Source: SEC EDGAR filings. Retrieved October 29, 2026.
| Period | Revenue (TTM) |
|---|---|
| FY23 Q4 | $2.5B |
| FY24 Q1 | $2.5B |
| FY24 Q2 | $2.6B |
| FY24 Q3 | $2.7B |
| FY24 Q4 | $2.7B |
| FY25 Q1 | $2.8B |
| FY25 Q2 | $2.9B |
| FY25 Q3 | $3.1B |
| FY25 Q4 | $3.2B |
| FY26 Q1 | $3.4B |
| FY26 Q2 | $3.6B |
| FY26 Q3 | $3.7B |
Source: SEC EDGAR filings. Retrieved October 29, 2026.
| Period | Revenue growth, TTM YoY |
|---|---|
| FY23 Q4 | 12.5% |
| FY24 Q1 | 12.3% |
| FY24 Q2 | 12.0% |
| FY24 Q3 | 11.7% |
| FY24 Q4 | 11.4% |
| FY25 Q1 | 11.3% |
| FY25 Q2 | 12.2% |
| FY25 Q3 | 14.6% |
| FY25 Q4 | 18.7% |
| FY26 Q1 | 21.4% |
| FY26 Q2 | 22.0% |
| FY26 Q3 | 20.2% |
Source: SEC EDGAR filings. Retrieved October 29, 2026.
| Period | Operating margin (TTM) |
|---|---|
| FY23 Q4 | 11.5% |
| FY24 Q1 | 6.6% |
| FY24 Q2 | 2.8% |
| FY24 Q3 | 1.3% |
| FY24 Q4 | 0.2% |
| FY25 Q1 | 0.2% |
| FY25 Q2 | -0.2% |
| FY25 Q3 | -2.6% |
| FY25 Q4 | -2.2% |
| FY26 Q1 | -0.8% |
| FY26 Q2 | 2.2% |
| FY26 Q3 | 5.8% |
Source: SEC EDGAR filings. Retrieved October 29, 2026.
| Period | FCF margin (TTM) |
|---|---|
| FY23 Q4 | 15.2% |
| FY24 Q1 | 1.1% |
| FY24 Q2 | -5.1% |
| FY24 Q3 | -4.5% |
| FY24 Q4 | -6.8% |
| FY25 Q1 | 1.8% |
| FY25 Q2 | 3.2% |
| FY25 Q3 | 1.6% |
| FY25 Q4 | 3.8% |
| FY26 Q1 | 6.8% |
| FY26 Q2 | 7.9% |
| FY26 Q3 | 11.5% |
| Fiscal year | 2009 Dec 2009 | 2010 Dec 2010 | 2011 Dec 2011 | 2012 Dec 2012 | 2013 Dec 2013 | 2014 Dec 2014 | 2015 Dec 2015 | 2016 Dec 2016 | 2017 Dec 2017 | 2018 Dec 2018 | 2019 Dec 2019 | 2020 Dec 2020 | 2021 Dec 2021 | 2022 Dec 2022 | 2023 Dec 2023 | 2024 Dec 2024 | 2025 Dec 2025 | LTM Sept 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Income | ||||||||||||||||||
| Revenue | 210 | 226 | 252 | 350 | 441 | 576 | 712 | 838 | 965 | 1,192 | 1,400 | 1,659 | 1,944 | 2,182 | 2,455 | 2,736 | 3,247 | 3,674 |
| Gross profit | 136 | 143 | 164 | 235 | 312 | 419 | 523 | 664 | 745 | 922 | 1,110 | 1,350 | 1,587 | 1,768 | 1,964 | 2,178 | 2,561 | 2,877 |
| EBITDA | 23 | 33 | 31 | 38 | 67 | 151 | 90 | 215 | 237 | 351 | 445 | 406 | 572 | 589 | 390 | 152 | 191 | 558 |
| Operating income | 32 | 23 | 22 | 27 | 54 | 81 | 11 | 145 | 174 | 274 | 364 | 289 | 432 | 451 | 282 | 5 | −72 | 212 |
| Net income | 19 | 13 | 15 | 10 | 30 | 45 | −3 | 85 | 123 | 238 | 315 | 227 | 293 | 370 | 375 | 139 | 7 | 179 |
| Diluted EPS | $0.09 | $0.06 | $0.06 | $0.04 | $0.10 | $0.15 | −$0.01 | $0.26 | $0.37 | $0.65 | $0.86 | $0.59 | $0.74 | $0.93 | $0.92 | $0.34 | $0.02 | $0.43 |
| Growth (year on year) | ||||||||||||||||||
| Revenue | — | +7.9% | +11.3% | +39.0% | +26.0% | +30.6% | +23.6% | +17.7% | +15.2% | +23.5% | +17.4% | +18.5% | +17.2% | +12.3% | +12.5% | +11.4% | +18.7% | +20.2% |
| EBITDA | — | +42.2% | −4.9% | +22.3% | +76.9% | +125.3% | −40.5% | +139.0% | +10.4% | +47.9% | +26.6% | −8.7% | +40.8% | +3.0% | −33.8% | −61.0% | +25.7% | +296.6% |
| Operating income | — | −28.5% | −4.4% | +26.0% | +97.4% | +49.3% | −85.8% | — | +20.0% | +57.4% | +32.9% | −20.4% | +49.5% | +4.3% | −37.5% | −98.2% | — | — |
| Net income | — | −28.9% | +10.3% | −32.3% | +199.9% | +50.9% | −107.7% | — | +44.2% | +94.2% | +32.2% | −27.9% | +28.8% | +26.3% | +1.5% | −62.9% | −95.0% | — |
| Diluted EPS | — | −31.9% | −3.1% | −40.3% | +183.8% | +39.0% | −107.5% | — | +39.7% | +78.7% | +31.5% | −31.4% | +25.4% | +25.7% | −1.1% | −63.0% | −94.1% | — |
| Margins | ||||||||||||||||||
| Gross margin | 64.8% | 63.1% | 65.0% | 67.2% | 70.7% | 72.7% | 73.5% | 79.2% | 77.2% | 77.4% | 79.3% | 81.4% | 81.6% | 81.0% | 80.0% | 79.6% | 78.9% | 78.3% |
| EBITDA margin | 11.0% | 14.4% | 12.3% | 10.8% | 15.2% | 26.3% | 12.6% | 25.7% | 24.6% | 29.5% | 31.8% | 24.5% | 29.4% | 27.0% | 15.9% | 5.6% | 5.9% | 15.2% |
| Operating margin | 15.2% | 10.1% | 8.6% | 7.8% | 12.3% | 14.0% | 1.6% | 17.3% | 18.0% | 23.0% | 26.0% | 17.4% | 22.2% | 20.7% | 11.5% | 0.2% | −2.2% | 5.8% |
| Net margin | 8.9% | 5.9% | 5.8% | 2.8% | 6.7% | 7.8% | −0.5% | 10.2% | 12.7% | 20.0% | 22.5% | 13.7% | 15.1% | 16.9% | 15.3% | 5.1% | 0.2% | 4.9% |
| Free-cash-flow margin | 13.8% | −8.0% | 5.1% | 20.4% | 20.2% | 20.2% | 14.7% | 21.7% | 21.8% | 25.7% | 32.7% | 29.3% | 17.8% | 20.3% | 15.2% | −6.8% | 3.8% | 11.5% |
| Cash flow | ||||||||||||||||||
| Cash from operations | 38 | 39 | 28 | 86 | 108 | 144 | 140 | 201 | 235 | 335 | 458 | 486 | 470 | 479 | 490 | 393 | 430 | 617 |
| Capital spending | 9 | 57 | 15 | 15 | 19 | 27 | 35 | 19 | 24 | 30 | 0 | 0 | 124 | 35 | 118 | 579 | 307 | 195 |
| Free cash flow | 29 | −18 | 13 | 71 | 89 | 116 | 105 | 182 | 210 | 306 | 458 | 486 | 346 | 444 | 372 | −186 | 123 | 422 |
| Stock-based pay | 6 | 8 | 8 | 12 | 42 | 28 | 35 | 36 | 39 | 41 | 52 | 53 | 64 | 75 | 85 | 89 | 194 | 153 |
| Free cash flow after stock pay | 23 | −26 | 5 | 59 | 48 | 88 | 70 | 146 | 171 | 265 | 406 | 433 | 282 | 368 | 287 | −275 | −71 | 269 |
| Balance sheet | ||||||||||||||||||
| Cash | 206 | 206 | 545 | 156 | 256 | 527 | 422 | 567 | 1,211 | 1,100 | 1,071 | 3,694 | 3,800 | 5,000 | 5,200 | 4,681 | 1,633 | 500 |
| Total debt | 0 | 0 | 0 | 171 | 153 | 385 | 365 | 345 | 0 | 4 | 134 | 1,000 | 1,000 | 1,000 | 1,000 | 1,000 | 993 | 1,000 |
| Net debt (negative = net cash) | −206 | −206 | −545 | 15 | −103 | −142 | −57 | −222 | −1,211 | −1,096 | −937 | −2,694 | −2,800 | −4,000 | −4,200 | −3,681 | −640 | 500 |
| Diluted shares | 199m | 207m | 235m | 269m | 282m | 306m | 320m | 324m | 336m | 364m | 366m | 383m | 394m | 398m | 407m | 408m | 421m | 412m |
| Returned to shareholders | ||||||||||||||||||
| Buybacks | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0 | 0 | 500 | 1,053 |
| Total returned | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0 | 0 | 500 | 1,053 |
| Quarter | 2024 Q4 Dec 2024 | 2025 Q1 Mar 2025 | 2025 Q2 Jun 2025 | 2025 Q3 Sept 2025 | 2025 Q4 Dec 2025 | 2026 Q1 Mar 2026 | 2026 Q2 Jun 2026 | 2026 Q3 Sept 2026 |
|---|---|---|---|---|---|---|---|---|
| Income | ||||||||
| Revenue | 709 | 732 | 781 | 834 | 900 | 897 | 925 | 952 |
| Gross profit | 569 | 579 | 613 | 662 | 707 | 701 | 728 | 741 |
| EBITDA | 80 | 4 | 39 | 18 | 130 | 85 | 161 | 182 |
| Operating income | 40 | −43 | −27 | −51 | 49 | 3 | 76 | 84 |
| Net income | 60 | −15 | 6 | −31 | 47 | 3 | 55 | 74 |
| Diluted EPS | $0.15 | −$0.04 | $0.01 | −$0.07 | $0.11 | $0.01 | $0.14 | $0.18 |
| Growth (year on year) | ||||||||
| Revenue | +10.8% | +11.5% | +15.2% | +20.4% | +26.9% | +22.5% | +18.4% | +14.1% |
| EBITDA | −18.8% | — | +71.8% | −69.6% | +63.1% | — | +312.8% | +911.1% |
| Operating income | −41.6% | — | — | −315.2% | +21.6% | — | — | — |
| Net income | −37.9% | — | −68.8% | −158.5% | −21.8% | — | — | — |
| Diluted EPS | −37.5% | — | −80.0% | −153.8% | −26.7% | — | — | — |
| Margins | ||||||||
| Gross margin | 80.2% | 79.1% | 78.5% | 79.4% | 78.6% | 78.1% | 78.7% | 77.8% |
| EBITDA margin | 11.2% | 0.5% | 5.0% | 2.2% | 14.4% | 9.5% | 17.4% | 19.1% |
| Operating margin | 5.7% | −5.9% | −3.5% | −6.1% | 5.4% | 0.3% | 8.2% | 8.8% |
| Net margin | 8.5% | −2.0% | 0.8% | −3.7% | 5.2% | 0.3% | 5.9% | 7.8% |
| Free-cash-flow margin | 3.6% | −0.1% | 3.6% | −0.6% | 11.2% | 11.9% | 8.3% | 14.4% |
| Cash flow | ||||||||
| Cash from operations | 95 | 53 | 147 | 68 | 162 | 152 | 115 | 188 |
| Capital spending | 69 | 54 | 119 | 73 | 61 | 45 | 38 | 51 |
| Free cash flow | 26 | −1 | 28 | −5 | 101 | 107 | 77 | 137 |
| Stock-based pay | 22 | 30 | 52 | 71 | 41 | 42 | 38 | 32 |
| Free cash flow after stock pay | 4 | −31 | −24 | −76 | 60 | 65 | 39 | 105 |
| Last 12 months unless stated | CSGP | NMRK | OPEN | Z | AGNT | FSV | Median |
|---|---|---|---|---|---|---|---|
| Revenue, last 12 months | $3.7bn | $3.6bn | $3.3bn | $2.8bn | $5.0bn | $5.5bn | $2.2bn |
| Revenue growth, last 12 months | 20.2% | 20.8% | −37.2% | 17.7% | 8.1% | 5.4% | 6.7% |
| Revenue growth, 3-year average | 15.4% | 14.9% | −34.0% | 14.1% | 5.4% | 74.3% | 13.0% |
| Revenue growth, latest quarter | 14.1% | 17.0% | −43.7% | 17.9% | 10.7% | — | 12.7% |
| Gross margin | 78.3% | — | 8.6% | 72.9% | 8.1% | — | 18.5% |
| Operating margin | 5.8% | 7.7% | −16.0% | 0.4% | −0.3% | 6.1% | 0.8% |
| Operating margin, 3-year average | 1.5% | 6.1% | −9.4% | −5.6% | −0.4% | 6.2% | −2.7% |
| Net margin | 4.9% | 4.1% | −46.7% | 2.0% | −0.3% | 2.6% | 1.8% |
| Cash from operations / revenue | 16.8% | 23.5% | −14.1% | 13.8% | 2.1% | 8.1% | 1.8% |
| Free-cash-flow margin | 11.5% | 22.1% | −14.6% | 9.2% | 1.9% | 5.8% | 1.5% |
| Free-cash-flow margin, 3-year average | 2.9% | 7.9% | −11.6% | 10.3% | 2.9% | 4.6% | 2.9% |
| Stock pay / revenue | 4.2% | 0.0% | 11.4% | 12.9% | 0.3% | 0.5% | 0.9% |
| Change in share count | −0.9% | — | 23.1% | 0.0% | 4.9% | 1.0% | 1.6% |
| Measure | Company | Peer median | Rank |
|---|---|---|---|
| Revenue growth Growth | 20.2% | 8.1% | 4 of 22 |
| Change in growth rate Growth | -1.8pp | -0.2pp | 13 of 22 |
| Operating margin Profitability | 5.8% | 1.2% | 6 of 22 |
| Net margin Profitability | 4.9% | 1.8% | 2 of 21 |
| Stock pay as % of revenue Cash generation | 4.2% | 1.0% | 17 of 21 |
| Long-term debt as % of assets Balance sheet | 9.7% | 18.2% | 6 of 14 |
| Change in share count Balance sheet | -0.9% | 1.8% | 5 of 20 |
Rank 1 = best in the group (for spending, debt and dilution, lower ranks first).
| Line of business | Revenue | Share | YoY |
|---|---|---|---|
| Commercial Real Estate | $1.8B | 55.0% | ▲ 18.0% |
| Residential Real Estate | $1.5B | 45.0% | ▲ 19.6% |
From CoStar Group's 10-K filed February 26, 2026, as tagged in the filing. View filing. Indented rows are part of the line above; their share is of that line. In the bars, the faint bar behind is the year before.
| Manager | Value | Shares | Share of 13F value | Shares QoQ |
|---|---|---|---|---|
| Vanguard Portfolio Management LLC | $1.1B | 37.9M | 9.2% | ▼ 0.8% |
| Blackrock, Inc. | $958M | 33.8M | 8.2% | 0.0% |
| Vanguard Capital Management LLC | $756M | 26.7M | 6.5% | ▼ 2.7% |
| BAMCO Inc | $612M | 21.6M | 5.3% | ▲ 32.6% |
| State Street Corp | $521M | 18.4M | 4.5% | ▼ 1.3% |
| Capital International Investors | $471M | 16.6M | 4.1% | ▲ 7.3% |
| Baillie Gifford & Co | $373M | 13.2M | 3.2% | ▼ 3.4% |
| Geode Capital Management, LLC | $343M | 12.2M | 3.0% | ▼ 2.3% |
| Akre Capital Management LLC | $331M | 11.7M | 2.8% | ▲ 13.1% |
| Polen Capital Management LLC | $248M | 8.8M | 2.1% | ▼ 30.3% |
| AQR Capital Management LLC | $239M | 8.4M | 2.1% | ▲ 568.8% |
| Jupiter Topco LLC | $222M | 7.8M | 1.9% | — |
From Form 13F filings with the SEC ( quarterly data sets), as reported by each manager for June 30, 2026 and filed up to 45 days later. 13F reports cover long US-listed positions of managers above $100M only, so this is not CoStar Group's complete shareholder register. Values are as reported by the filers ; 1 inconsistently scaled filing rows were excluded.
| Insider | Date | Trade | Shares | Price | Value |
|---|---|---|---|---|---|
| Cann Cynthia Cammett Chief Accounting Officer | August 7, 2026 | Sell | 4,788 | $30.78 | $147,375 |
| Hill John W Director | August 5, 2026 | Sell | 3,500 | $30.21 | $105,735 |
| Florance Andrew C Founder and CEO | August 4, 2026 | Buy | 83,300 | $29.89 | $2.5M |
| Florance Andrew C President and CEO | May 1, 2026 | Buy | 3,100 | $35.82 | $111,042 |
| Florance Andrew C President and CEO | May 1, 2026 | Buy | 68,330 | $35.17 | $2.4M |
| Sams Louise S Director | March 6, 2026 | Buy | 1,000 | $48.36 | $48,360 |
| Saint Frederick G. President, Marketplaces | March 2, 2026 | Buy | 20,000 | $45.33 | $906,600 |
| Glaser Rachel C Director | March 2, 2026 | Buy | 1,000 | $44.94 | $44,940 |
| Florance Andrew C President and CEO | February 27, 2026 | Buy | 55,720 | $44.52 | $2.5M |
| Cann Cynthia Cammett Chief Accounting Officer | November 13, 2025 | Sell | 1,841 | $68.79 | $126,642 |
| Hill John W Director | November 13, 2025 | Sell | 2,250 | $68.68 | $154,530 |
From insiders' Form 4 filings with the SEC. Excludes awards, option exercises and shares withheld for tax. "Pre-set plan" means the filing marks the trade as made under a Rule 10b5-1 plan. See every insider trade since five years ago, on a price chart.
In the last 12 months, 1 member of Congress disclosed 4 purchases and 1 sale of CoStar Group shares.
Next expected around January 26, 2027 estimated from the company's past filing pattern, not announced
| Data | Last updated | Source |
|---|---|---|
| Share price | Exchange closing prices | |
| Financial statements | SEC 10-K and 10-Q filings | |
| News and updates | Company releases and SEC 8-K filings | |
| Analyst estimates | Aggregated analyst estimates | |
| Valuation and scores | Our models, from the filed figures |
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